Re: burning hard drive to disk
From: Eddie Corns (eddie_at_holyrood.ed.ac.uk)
Date: 03/24/04
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Date: Wed, 24 Mar 2004 12:27:04 +0000 (UTC)
jpd <read_the_sig@do.not.spam.it> writes:
>In article <c3plvl$6pf$1@scotsman.ed.ac.uk>, Eddie Corns wrote:
>[snip]
>> The critical word is "need", the booting process for Windows uses information
>> in the MBR to know where critical files are etc., repartioning can overwrite
>*bzzzt* Thanks for playing.
>The MBR (Master Boot Record, that what resides on the first sector of
>the DISK, all of 512 bytes big) only holds a bootloader and a table with
>parti^Wslice info. That one loads and jumps to, depending on bootloader;
>a) the secondary bootloader which resides on the first sector of a parti^W
> slice marked active in the slice table (the default MBR does this)
>b) like a) but you get to choose which slice to read the bootloader from
> (the FreeBSD bootloader), or
>c) the second-and-further sectors of the disk that are not in use normally
> as a slice has to start on (IIRC) a cylinder boundary and can be hijacked
> for storing extra bootloader code (lilo, grub, etc) which then provides
> a fancy way of doing b) or even just a).
Yes, this is what I was thinking of and misremembered the name. I only got
involved in the first instance because I could see potential for things going
wrong and was trying to clarify the requirements. I should have punted more
on the follow-up situation where my knowledge was less complete. I will write
out 100 times "I do not have to try and answer a question just because it is
directed explicitly to me".
>Where exactly DOS^Wwindows stores its info I blissfully forgot, but it's
>not in the MBR. AFAIK it's not in the secondary bootblock either, but
>somewhere in what would be a superblock if FAT had such a notion.
>However, IME judicious application of the SYS utility (can't remember if
>it was SYS.EXE or SYS.COM, and I don't care) can help you make a
>DOS^Wwindows partition bootable again. This goes for DOS based stuff, as
>you might have guessed. The other variety, that of NT[T]* windowses,
>have their own brand of booting and bootloaders and Stuff.
I would hope that a recovery disk, hopefully anybody's win98 recovery
disk, would be able to do this.
Eddie
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